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| Analysis of Residual Characteristics of Sulfonamides in Pork in China |
| JIN Hongguo, ZHANG Rui, WANG Ying, LI Tingting, LIU Hualin* |
| Circulation Industry Promotion Center of the Ministry of Commerce, Beijing 100070, China |
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Abstract Sixteen sulfonamide residues in 604 pork samples collected from 15 Chinese provinces in 2016 were investigated by using ultra performance liquid chromatography combined with tandem mass spectrometry (UPLC-MS/MS). The detection rate and over-limit rate of sulfonamides were 4.80% and 1.66%, respectively. Sulfamethazine was the dominant residual sulfonamide at a maximum concentration of 321.0 μg/kg, followed by sulfachloropyridazin. The residual characteristics of sulfonamides in pork and livestock and poultry feces were consistent. Besides sulfonamide, other sulfonamide residues were also detected in pork samples.
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2017, Vol. 31 
